
5. ROUTER DESIGN
5.4
Basic dimensions of router box
Figure 21: Basic dimensions of router box
5.5
Mechanical dimensions and mounting recommendations
Mounting recommendations:
•
possibility to be put on a work surface,
•
DIN rail with clips CPD3 (or CKD2 for metal version) are included.
For the most of applications with a built-in router in a switch board it is possible to recognize
two kinds of environments:
•
no public and industry environment of low voltage with high interference,
•
public environment of low voltage without high interference.
For both of these environments it is possible to mount router to a switch board, the following
there is no need to have examination immunity or issues in connection with EMC according to
EN 60439-1 ed.2:00 + A1:04.
For compliance of EN 60439-1 ed.2:00 + A1:04 specification it is necessary to observe
next assembly of the router to the switch – board:
•
For whip antennas we recommend to observe a distance of 6 cm from cables and metal
surfaces on every side due to the elimination of interference. While using an external
antenna except for the switch-board it is necessary to fit a lightening conductor.
•
Before mounting a router on sheet-steel we recommend using a "cable" antenna.
•
For every cables we recommend to bind the bunch, we recommend for this use:
–
Length of the bunch (combination of power supply and data cables) can be maxi-
mum 1.5 m. If the length of data cables exceeds 1.5 m or in the event of, the cable
leads towards the switch – board. We recommend installing over – voltage protec-
tors (surge suppressors).
12